How Word

<ctl>-\  --> Toggle show/hide subsections

<alt>-F9  --> Toggle show/hide field codes

<ctl>-F9 --> Insert field code
             (must then right click on a field code to edit or update,
             otherwise it does not seem to work)

F9 - update field codes (<ctr>-a F9 --> whole doc)

<ctl>-*  --> show/hide formatting marks (doesn't seem to work)
             (also click paragraph icon on menu) 

View-->Outline
  Show Document
  Expand Subsections
  Select a circled "+" sign and hit create subsection